HHH-11108 - Add test to prove that @Basic( fetch = FetchType.LAZY ) really works as expected

This commit is contained in:
Vlad Mihalcea 2016-09-15 14:17:09 +03:00
parent 7247f05a21
commit 55e175ce31
3 changed files with 137 additions and 0 deletions

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@ -19,6 +19,7 @@ buildscript {
}
dependencies {
classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.5.2'
classpath "org.hibernate:hibernate-gradle-plugin:$hibernateTargetVersion"
}
}
@ -29,6 +30,15 @@ apply plugin: 'hibernate-matrix-testing'
apply from: "${rootProject.projectDir}/utilities.gradle"
apply plugin: 'org.hibernate.orm'
hibernate {
enhance {
enableLazyInitialization = true
}
}
defaultTasks 'buildDocs'
configurations {
@ -62,6 +72,7 @@ dependencies {
testCompile( project(':hibernate-testing') )
testCompile( libraries.mockito )
testRuntime( libraries.h2 )
testRuntime( libraries.hsqldb )
testRuntime( libraries.postgresql )

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@ -0,0 +1,43 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.userguide.model;
import javax.persistence.Basic;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.Lob;
/**
* @author Vlad Mihalcea
*/
@Entity
public class Image {
@Id
private Long id;
@Lob
@Basic( fetch = FetchType.LAZY )
private byte[] content;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public byte[] getContent() {
return content;
}
public void setContent(byte[] content) {
this.content = content;
}
}

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@ -0,0 +1,83 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.userguide.fetching;
import java.sql.PreparedStatement;
import java.util.List;
import java.util.Map;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.dialect.H2Dialect;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.hibernate.userguide.model.Image;
import org.hibernate.testing.RequiresDialect;
import org.hibernate.test.util.jdbc.PreparedStatementSpyConnectionProvider;
import org.junit.Test;
import org.jboss.logging.Logger;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
/**
* @author Vlad Mihalcea
*/
@RequiresDialect(H2Dialect.class)
public class LazyBasicAttributeTest extends BaseEntityManagerFunctionalTestCase {
private static final Logger LOGGER = Logger.getLogger( LazyBasicAttributeTest.class );
private PreparedStatementSpyConnectionProvider connectionProvider = new PreparedStatementSpyConnectionProvider();
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
Image.class,
};
}
@Override
protected Map buildSettings() {
Map settings = super.buildSettings();
settings.put(
AvailableSettings.CONNECTION_PROVIDER,
connectionProvider
);
return settings;
}
@Override
public void releaseResources() {
super.releaseResources();
connectionProvider.stop();
}
@Test
public void test() {
doInJPA( this::entityManagerFactory, entityManager -> {
Image image = new Image();
image.setId(1L);
image.setContent(new byte[] {1, 2, 3});
entityManager.persist(image);
});
doInJPA( this::entityManagerFactory, entityManager -> {
connectionProvider.clear();
Image image = entityManager.find(Image.class, 1L);
LOGGER.debug("Fetched image");
List<PreparedStatement> preparedStatements = connectionProvider.getPreparedStatements();
assertEquals( 1, preparedStatements.size() );
assertNotNull( connectionProvider.getPreparedStatement( "select image0_.id as id1_0_0_ from Image image0_ where image0_.id=?" ) );
assertArrayEquals(new byte[] {1, 2, 3}, image.getContent());
preparedStatements = connectionProvider.getPreparedStatements();
assertEquals( 2, preparedStatements.size() );
assertNotNull( connectionProvider.getPreparedStatement( "select image_.content as content2_0_ from Image image_ where image_.id=?" ) );
});
}
}